refactor: extract tooltips and simplify map components

[ztocode]

Tooltip components:

• Create Map/tooltip/ folder and move Identify, CommunityIdentify
• Add EnvironmentalJusticePopupContent (supports UPPER_SNAKE_CASE and PascalCase)
• Add TrailPopupContent for Major/Regular trail popups
• Add OpenSpacePopupContent
• Add BlueBikeStationPopupContent with styled-components

RegionalTrailsProfile:

• Simplify handleTrailClick with getFeaturesAtPoint, clearAllPopups, showPopup
• Use props.length_ft only for trail length calculation
• Add Trail Status Legend and OpenSpace popup with styled-components
• Replace inline popups with tooltip components

CommunityTrailsProfile:

• Replace inline EJ, OpenSpace, Blue Bike popups with tooltip components

ProjectMetricsPanel:

• Add formula explanation text for Total Miles and Complete Rate
• Total Miles: Existing + Planned + Envisioned + Design + gaps
• Completed Miles: Existing trails
• Complete rate: (existing ÷ total) × 100

Other:

• Move NavigationControl/GeolocateControl to bottom-right
• Restrict transformRequest to non-Mapbox tile URLs
• Remove source-map-loader to fix robust-predicates ENOENT build error